Duogreen electrolux el020a electro h12 replacement hepa filter * Replacement filter for electrolux harmony and oxygen line canisters and upright filter. * Compatible with el4050a, el4050b, el4100a, el6986a, el7000a, el7005a, el7020a, el7020b * EL7024A, EL7025A, PE7025A, SP7025A Dimension: 5.75 x 4.75 x 1 inches. limited 60 days warranty duogreen is a registered trademark of iOttie, and it strive to provide the customers with the top quality products at all times. duogreen undergoes series of rigorous screening processes of all its products through continuous testing and sampling to maintain its top notch manufacturing process. duogreen's current products ranges from DLP lamps, Irobot accessories and many more. duogreen's replacement filter for Electrolux HARMONY and Oxygen line canisters and upright filter Part No. EL012, EL012A, 1130939-01, EL012b, EL-012B are durable and longer lasting, reduces the amount of dust, pollen and other allergen infiltration. For the best result, please replace the filter every 2-3 months. Sometimes "Less is More!!"